<template>
  <div class="login_container">
     <div class="login_box">
         <div class="avatar_box">
             <img src="../assets/logo.png" alt="" srcset="">
         </div>
         <el-form ref="formref" :model="form" :rules="rules" label-width="0px" class="login_form">
            <el-form-item prop="username">
                <el-input v-model="form.username" prefix-icon="el-icon-user-solid"></el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input v-model="form.password" type="password" prefix-icon="el-icon-unlock"></el-input>
            </el-form-item>
            <el-form-item class="btns">
                <el-button type="primary" @click="login">登陆</el-button>
                <el-button type="danger" @click="reset" >重置</el-button>
            </el-form-item>
         </el-form>
     </div>
  </div>
</template>

<script>
export default {
    data () {
      return {
        form: {
          username: 'admin',
          password: '123456'
        },
        rules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
          ]
        }
      }
    },
    methods: {
        reset () {
            this.$refs.formref.resetFields()
        },
        login () {
            this.$refs.formref.validate(async valid => {
                if (!valid) return
                const { data: res } = await this.$http.post('login', this.form)
                if (res.meta.status !== 200) return this.$message.error('登陆失败')
                this.$message.success('登陆成功')
                window.sessionStorage.setItem('token', res.data.token)
                this.$router.push('/home')
            })
        }
    }
}
</script>

<style lang="less" scoped>
    .login_container{
        background-color: #2b4b6b;
        height: 100%;
    }
    .login_box{
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top:50%;
        transform: translate(-50%,-50%);
        .avatar_box{
            height: 130px;
            width: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            left: 50%;
            transform: translate(-50%,-50%);
            background-color: #fff;
            img{
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background-color: #eee;
            }
        }
    }
    .login_form{
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    .btns{
        display: flex;
        justify-content: flex-end;

    }

</style>
